This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X80SH, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI63 Standard Cylinder SI63X80SH
The AirTAC Airtac SI63 Standard Cylinder SI63X80SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X80SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X80SH
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI63 Standard Cylinder SI63X80SH
The AirTAC SI63X80SH is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke. Delivering 1559 N push and 1402 N pull at 0.5 MPa, it features a G3/8 port, M16x1.5 rod thread, and a built-in magnet for CS1-B/DS1-B switches. The direct replacement is the SAI63X80SH, maintaining the exact bore, force, port, and mounting dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. For high-temperature environments, the Viton H seal option raises operating limits to 0-150 C.
Airtac SI63 Standard Cylinder SI63X80SH Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X80SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X80SH |
| Bore size | Ø63 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI63X80SH carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAI63X80SH produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI63 Standard Cylinder SI63X80SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI63 Standard Cylinder SI63X80SH Is Used
Clamping Fixtures
Secures mid-weight machined parts during milling with 935 N of safe working force.
Package Diverters
Actuates routing gates on 63 mm ISO 15552 profile cylinder assembly lines.
Replacing the Airtac SI63 Standard Cylinder SI63X80SH with the SAI63X80SH
To replace the SI63X80SH, order the SAI63X80SH and confirm the ISO 15552 mounting interface, G3/8 port, and magnet option. If you need higher force, the neighboring 80 mm bore provides 2513 N push at 0.5 MPa; if lower force is acceptable, the 50 mm bore offers 982 N. The SAI family also adds SAIL, SAIF, and BSAI variants for locking and valve needs. Note that a plain cylinder drifts on air loss; the air cushion only decelerates near stroke end. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X80SH
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI63 Standard Cylinder SI63X80SH FAQ
Yes, the SI63X80SH is discontinued. The direct replacement is the SAI63X80SH, which shares the same ISO 15552 mounting interface, 63 mm bore, 80 mm stroke, G3/8 port, and output force.
It uses a G3/8 port. Theoretical forces are 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X80SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X80SH replacement — usually within 7-8 hours.